| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hot rolling method by which a rise of operation cost is suppressed even when a material has large deformation resistance. SOLUTION: The heating temperatures which are predetermined by simulation in accordance with the kinds of steel of a slab 7 and dimensions (thickness, width) of a metallic strip 9 are respectively set so that the temperature of the metallic strip 9 on the outlet side of a finishing mill 3 is within the range of predetermined upper-limit-temperature and lower-limit-temperature in a heating controller 20 and heating command is imparted to a heating device 11 with the heating controller 20 so as to become the heating temperature in accordance with the kinds of the slab 7 and dimensions of the metallic strip 9. A blank bar 8 is heated by electric induction so as to be a specified temperature according to the imparted heating command with the heating device 11.</p> |
